Evidence map›Paper›PMID 18402683›Full record

Trial reportBMC medical research methodology2008

Motives for (not) participating in a lifestyle intervention trial.

Jeroen Lakerveld, Wilhelmina Ijzelenberg, Maurits W van Tulder, Irene M Hellemans, Jan A Rauwerda, Albert C van Rossum, Jaap C Seidell

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC medical research methodology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

64 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  5. Ecological Predictors of Older Adults' Participation and Retention in a Physical Activity Intervention.International journal of environmental research and public health · 2022
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  14. The effect of reminders in a web-based intervention study.European journal of epidemiology · 2012
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  15. Prenatal loss of control eating and cardiovascular health: Extending prior findings.Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 2026
    Article
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4 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Jeroen LakerveldDepartment of General Practice, EMGO Institute, VU University Medical Center, v,d, Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands. j.lakerveld@vumc.nl
Wilhelmina Ijzelenberg
Maurits W van Tulder
Irene M Hellemans
Jan A Rauwerda
Albert C van Rossum
Jaap C Seidell

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNon-participants can have a considerable influence on the external validity of a study. Therefore, we assessed the socio-demographic, health-related, and lifestyle behavioral differences between participants and non-participants in a comprehensive CVD lifestyle intervention trial, and explored the motives and barriers underlying the decision to participate or not.

methodsWe collected data on participants (n = 50) and non-participants (n = 50) who were eligible for inclusion in a comprehensive CVD lifestyle interventional trial. Questionnaires and a hospital patient records database were used to assess socio-demographic, health-related and lifestyle behavioral variables. Univariate and multivariate logistic regression was used to describe the relationship between explanatory variables and study participation. Furthermore, motives and barriers that underlie study participation were investigated by means of questionnaires.

resultsParticipants were younger, single, had a higher level of education and were employed. No statistically significant differences were found in health measures and behavioral variables. The motives for participation that were most frequently reported were: the perception of being unhealthy and willingness to change their lifestyle. The main barriers reported by non-participants were financial arguments and time investment.

conclusionThe differences between participants and non-participants in a lifestyle intervention trial are in mainly demographic factors. The participants consent in order to alter their lifestyle, and/or because they want to improve their health. To minimize non-participation, it is recommended that access to a lifestyle intervention program should be easy and cause no financial restraints.

trial registrationISRCTN69776211.

Indexed as

Health BehaviorLife StyleAdolescentAdultAgedAge FactorsAttitude to HealthCardiovascular DiseasesFemaleHealth StatusHumansLogistic ModelsMaleMiddle AgedMotivationPatient Participation

Identifiers

PMID18402683
PMCPMC2365955

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.